CVE-2018-5253 : Security Advisory and Response

An infinite loop can be triggered by a specially designed MP4 file that causes size mishandling in the AP4_FtypAtom class, located in Core/Ap4FtypAtom.cpp, within Bento4 1.5.1.0.

Understanding CVE-2018-5253

The AP4_FtypAtom class in Core/Ap4FtypAtom.cpp in Bento4 1.5.1.0 has an infinite loop via a crafted MP4 file that triggers size mishandling.

What is CVE-2018-5253?

The vulnerability in CVE-2018-5253 allows an attacker to trigger an infinite loop by exploiting a specially crafted MP4 file, leading to size mishandling in the AP4_FtypAtom class within Bento4 1.5.1.0.

The Impact of CVE-2018-5253

This vulnerability can be exploited by an attacker to cause a denial of service (DoS) condition by triggering an infinite loop in the affected software.

Technical Details of CVE-2018-5253

The technical details of the CVE-2018-5253 vulnerability are as follows:

Vulnerability Description

An infinite loop can be triggered by a specially designed MP4 file in the AP4_FtypAtom class in Bento4 1.5.1.0.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Version: Bento4 1.5.1.0

Exploitation Mechanism

The vulnerability is exploited by crafting a malicious MP4 file to trigger an infinite loop, leading to size mishandling.

Mitigation and Prevention

To mitigate the risks associated with CVE-2018-5253, consider the following steps:

Immediate Steps to Take

Disable the processing of untrusted MP4 files.
Implement file size checks and input validation mechanisms.

Long-Term Security Practices

Regularly update the software to the latest version.
Conduct security assessments and code reviews to identify and address vulnerabilities.

Patching and Updates

Apply patches or updates provided by the software vendor to fix the vulnerability.